Ultrastrong linear optomechanical interaction

Author(s)
Kahan Dare, Jannek J. Hansen, Iurie Coroli, Aisling Johnson, Markus Aspelmeyer, Uroš Delić
Abstract

Light-matter interaction in the ultrastrong coupling regime can be used to generate exotic ground states with two-mode squeezing and may be useful for quantum-enhanced sensing. Current demonstrations of ultrastrong coupling have been performed in fundamentally nonlinear systems. We report a cavity optomechanical system that operates in the linear coupling regime, reaching a maximum coupling of 𝑔𝑥/Ω𝑥=0.55±0.02. Such a system is inherently unstable, which may in the future enable strong mechanical squeezing.

Organisation(s)
Quantum Science
External organisation(s)
Österreichische Akademie der Wissenschaften (ÖAW)
Journal
Physical Review Research
Volume
6
No. of pages
6
ISSN
2643-1564
DOI
https://doi.org/10.48550/arXiv.2305.16226
Publication date
10-2024
Peer reviewed
Yes
Austrian Fields of Science 2012
103026 Quantum optics
Portal url
https://ucrisportal.univie.ac.at/en/publications/3b9f5277-5c83-4377-88f1-8bffed3f88ff